85mW、モノラル、14mW ステレオ、アナログ入力ヘッドホン・アンプ

製品詳細

Output power (W) 0.085 Analog supply (min) (V) 0.9 Analog supply voltage (max) (V) 2.5 Load (min) (Ω) 8 PSRR (dB) 66 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control No Shutdown current (ISD) (µA) 0.02 Architecture Class-AB Iq per channel (typ) (mA) 0.5
Output power (W) 0.085 Analog supply (min) (V) 0.9 Analog supply voltage (max) (V) 2.5 Load (min) (Ω) 8 PSRR (dB) 66 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control No Shutdown current (ISD) (µA) 0.02 Architecture Class-AB Iq per channel (typ) (mA) 0.5
VSSOP (DGS) 10 14.7 mm² 3 x 4.9 WSON (NGY) 10 9 mm² 3 x 3
  • Single-cell 0.9V to 2.5V battery operation
  • BTL mode for mono speaker
  • Single ended headphone operation with coupling capacitors
  • Unity-gain stable
  • "Click and pop" suppression circuitry
  • Active low micropower shutdown
  • Low current, active-low mute mode
  • Thermal shutdown protection circuitry

  • Single-cell 0.9V to 2.5V battery operation
  • BTL mode for mono speaker
  • Single ended headphone operation with coupling capacitors
  • Unity-gain stable
  • "Click and pop" suppression circuitry
  • Active low micropower shutdown
  • Low current, active-low mute mode
  • Thermal shutdown protection circuitry

The unity gain stable LM4916 is both a mono differential output (for bridge-tied loads or BTL) audio power amplifier and a Single Ended (SE) stereo headphone amplifier. Operating on a single 1.5V supply, the mono BTL mode delivers 85mW into an 8 load at 1% THD+N. In Single Ended stereo headphone mode, the amplifier delivers 14mW per channel into a 16 load at 1% THD+N.

With the LM4916 packaged in the MM and LLP packages, the customer benefits include low profile and small size. These packages minimize PCB area and maximizes output power.

The LM4916 features circuitry that reduces output transients ("clicks" and "pops") during device turn-on and turn-off, an externally controlled, low-power consumption, active-low shutdown mode, and thermal shutdown. Boomer audio power amplifiers are designed specifically to use few external components and provide high quality output power in a surface mount package.


Key Specifications

Mono-BTL output power

 

(RL = 8, VDD = 1.5V, THD+N = 1%)

85mW (typ)

Stereo Headphone output power

 

(RL = 16, VDD = 1.5V, THD+N = 1%)

14mW (typ)

Micropower shutdown current

0.02µA (typ)

Supply voltage operating range

0.9V < VDD < 2.5V

PSRR 1kHz, VDD = 1.5V

66dB (typ)


The unity gain stable LM4916 is both a mono differential output (for bridge-tied loads or BTL) audio power amplifier and a Single Ended (SE) stereo headphone amplifier. Operating on a single 1.5V supply, the mono BTL mode delivers 85mW into an 8 load at 1% THD+N. In Single Ended stereo headphone mode, the amplifier delivers 14mW per channel into a 16 load at 1% THD+N.

With the LM4916 packaged in the MM and LLP packages, the customer benefits include low profile and small size. These packages minimize PCB area and maximizes output power.

The LM4916 features circuitry that reduces output transients ("clicks" and "pops") during device turn-on and turn-off, an externally controlled, low-power consumption, active-low shutdown mode, and thermal shutdown. Boomer audio power amplifiers are designed specifically to use few external components and provide high quality output power in a surface mount package.


Key Specifications

Mono-BTL output power

 

(RL = 8, VDD = 1.5V, THD+N = 1%)

85mW (typ)

Stereo Headphone output power

 

(RL = 16, VDD = 1.5V, THD+N = 1%)

14mW (typ)

Micropower shutdown current

0.02µA (typ)

Supply voltage operating range

0.9V < VDD < 2.5V

PSRR 1kHz, VDD = 1.5V

66dB (typ)


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種類 タイトル 最新の英語版をダウンロード 日付
* データシート LM4916   1.5V, Mono 85mW BTL Output, 14mW Stereo Headphone Audio Ampli(jp) データシート (Rev. D 翻訳版) 最新英語版 (Rev.E) PDF | HTML 2006年 7月 31日

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